ISTC does not list this for either the Dibner or Burndy libraries.
ISTC assigned to Athanasius.
The 'operis commendatio' is dated nonis Augusti 1500 on f.2v (BMC).
The opening work is wrongly attributed to Athanasius, being the Dialogus contra Arianos of Vigilius Thapsensis. The work attributed to Cyprianus is in fact by Ernaldus Bonavallensis.